I came across this attachment whilst searching for a solution for sanding edges using my Festool ETS EC 150 orbital sander (Festool only provide a dedicated edge sanding attachment for the ETS EC 125 orbital). Whilst I'm happy that I was able to find a solution, and opted to purchase the 90° option for a total delivered price of £91.74, the product that arrived was disappointing. I was aware before purchase that the product I was buying had been made on a 3-D printer, but no effort has been made to 'finesse' the finished product, literally taken off the printer and placed in a box for delivery. The edges are unfinished and corse, and the whole item has a feel of cheapness about it. If it had cost £30, I wouldn't complain, but at nearly £100, I expect more. The official Festool attachment for the ETS EC 125 sander has a better finish, complete with adjustability and is available currently for £128 delivered. A more realistic spec for the price, and all I can compare to in this niche market. Setting aside the finish of the product, the actual operation is unrefined, assembling the attachment to the sander can be fiddly and problematic due to the diameter of the bracket and shortness of the attached clasp. Once attached though, it seems to remain in place fairly well, although there is a small amount of flex between the two, so care still needs to be taken, although the end result is far superior to edges sanded without. To summarise, one of the few options for turning your Festool ETS EC 150 into a reasonably competent edge sander. In my opinion though, overpriced for what you get in comparison to other comparable products. To remain at this price, an improved finish, assembly capability and greater adjustability options are required. Or simply lower the price to £30 to reflect the lack of. I had ordered my attachment as a requirement for a project I was undertaking at the time, so had no option other than to use it, which is why the attachment was not returned. In all other aspects of my interactions with ILUKA tools, I was satisfied, website, ordering, communication and delivery all worked well.